Invention Grant
- Patent Title: Device and method for thermally pre-stressing elongated hollow objects
- Patent Title (中): 热预应力细长中空物体的装置和方法
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Application No.: US11186108Application Date: 2005-07-21
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Publication No.: US07805962B2Publication Date: 2010-10-05
- Inventor: Michael Spaeth , Klaus Krippeit , Hendrik Alfter , Juergen Thuerk
- Applicant: Michael Spaeth , Klaus Krippeit , Hendrik Alfter , Juergen Thuerk
- Applicant Address: DE Mainz
- Assignee: Schott AG
- Current Assignee: Schott AG
- Current Assignee Address: DE Mainz
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102004037491 20040726
- Main IPC: C03B27/00
- IPC: C03B27/00
Abstract:
A device and a method for thermal pre-stressing lengthy hollow objects, in particular glass tubes, are disclosed. The device comprises a heating device, a fixture for receiving an object, and a coolant feed device comprising an outer coolant feed unit with a plurality of nozzles for feeding coolant against an outer surface of the object, and further comprising an inner coolant feed device for feeding coolant against an inner surface of the object.
Public/Granted literature
- US20060016220A1 Device and method for thermally pre-stressing elongated hollow objects Public/Granted day:2006-01-26
Information query
